<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body {
            background-color: #333;
            
        }
        .map {
            position: relative;
            width: 747px;
            height: 617px;
            margin: 0 auto;
            background: url(map.png) no-repeat ;
        }
        .city {
            position: absolute;
            top: 227px;
            right: 192px;
        }
        .dian {
             
            width: 8px;
            height: 8px;
            background-color: #09f;
            border-radius: 50%;
        }
        .tai {
            position: absolute;
            top: 498px;
            right: 78px;
            
        }
        .map div[class^="pluse"] {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 8px;
            height: 8px;
            border-radius: 50%;
            box-shadow: 0 0 12px #009dfd;
            animation: hot 1.2s linear infinite ;
        }
        .map div.pluse2{
            animation-delay: 0.4s;
        }
        .map div.pluse3{
            animation-delay: 0.8s;
        }
        @keyframes hot {
            70% {
                width: 40px;
                height: 40px;
            }
            100% {
                width: 70px;
                height: 70px;
            }
        }
    </style>
</head>
<body>
    <div class="map">
        <div class="city">
            <div class="dian"></div>
            
            <div class="pluse1"></div>
            <div class="pluse2"></div>
            <div class="pluse3"></div>
        </div>
        <div class="tai">
            <div class="dian"></div>
            
            <div class="pluse1"></div>
            <div class="pluse2"></div>
            <div class="pluse3"></div>
        </div>
       
    </div>
</body>
</html>